Home / 20,228.37-30,344.39-5,436.96

Finding the Fourth Proportional to 20,228.37, 30,344.39 and 5,436.96

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Solution

The fourth proportional to 20,228.37, 30,344.39 and 5,436.96 is: 8,155.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,228.37 : 30,344.39 = 5,436.96 : x
  2. Step 2: Convert to fraction form
    20,228.37/30,344.39 = 5,436.96/x
  3. Step 3: Cross multiply
    20,228.37x = 30,344.39 × 5,436.96
  4. Step 4: Simplify right side
    20,228.37x = 164,981,207.47
  5. Step 5: Solve for x
    x = 164,981,207.47/20,228.37
  6. Step 6: Final answer
    x = 8,155.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.